Closure for containers



Aug. 14-, 1934. J. scHROEDER I 1,969,822

CDOSURE FOR CONTAINERS Filed Sepfiz. 21, 1931 I v INVENTUR.

iara Patented Aug. 14, 1934 CLOSURE FOR CONTAINERS Henry J. Schroeder, San Antonio, Tex.

Application September 21, 1931, Serial No. 564,035

3 Claims. (Cl. 221-60) tainer without separating The invention relates to improvements in stoppers for containers, particularly for containers for fluids, semifluids, pastes, creams, greases and substances of similar consistency, and for granular substances which can be moved as fluids or semifiuids, and the objects of the improvements are: to provide a stopper which will seal the container and also which may be adjusted so as to permit the removal of the contents of the conthe stopper from the container; to provide a stopper which will permit the shaping of substances as they are removed from the container without separating the stopper from the container; to provide a stopper which will provide an air vent and an opening for removing fluid contents of a rigid container without separating the stopper from the container; to provide a stopper which will have a guide or shelf which may facilitate the ready use and handling of the contents of the container during removal and also reduce waste in the use of the contents.

One type of the invention is shown in the figure. Referring to this figure in the accompanying drawing, the container 1 has a rigid neck 2, closed at the top 3, an opening 4 in the side of the neck,

and screw threads 5 around the base of the neck. Around the neck is fitted an elastic washer 6 with a flange '7 around its top. The elastic washer fits tight around the neck and has an opening 8 which coincides with the opening 4 in the neck.

Fitted around the neck and washer is a sleeve 9, threaded at 10 to coact with threads on neck, and having a guiding surface 11 at or near the top of the sleeve to facilitate the handling of the contents of the container during removal.

For rigid containers an additional opening 12 through the neck and washer is provided as an air vent to facilitate the removal of fluids from the container through openings 4 and 8. To assemble the combination, sleeve 9 may be placed around neck 2 and screwed down to the base of the neck. The elastic washer may then be fitted tightly around the neck, with the openings in the neck and washer coinciding. .In this position of the assemblage, the container may be said to be unstoppered, so that the contents may be removed. When the sleeve 9 is screwed back up against flange '7 of washer 6, the inner cylindrical surface of sleeve 9 above screw threads 10,

closes openings 4, 8 and 12. Flange '7 keeps the sleeve from being separated from the neck of the container.

For some types of containers, it may be advantageous to omit the screw threads on sleeve and neck; or to simplify the coacting threads by changing them to coacting stud and groove; or to so limit the motion of the sleeve that it moves around, without moving along, the neck, the

contents of the container being removed through 601! a channel in the shelf or guide as this channel is moved into line with the openings in the neck and washer.

The advantages of this type of stopper include:

simplicity of manufacture and operation, efii- 5 ciency of the seal, cleanliness of the parts after use, and the guide or shelf provided for the handling of contents during their removal.

I claim:

1. The combination of a container terminating in a rigid cylindrical neck having an end closure, said neck having an opening through the cylindrical wall thereof immediately below the end closure and having a screw thread extending below and clear of said opening; and a cylindrical 1 washer fitted closely around the outside of the neck and extending above and below the neck opening, with an opening in said washer coinciding with the opening in the neck, said washer having a flange around its upper rim; and a sleeve so rotatably mounted around said neck and washer, having a screw thread coacting with that of said neck and having a cylindrical inner surface above said screw thread adapted to closely fit around said washer so as to cover said opening 85.

in said washer and neck when screwed up toward said flange, and to uncover said openings in said washer and neck when screwed down away from said flange; said sleeve having a shelf or guide to facilitate the handling of the contents during 901.:

removal from the container; said washer and neck having additional coincident openings as air vents for the removal of fluids from rigid containers.

2. The combination of a container terminatw ing in a rigid cylindrical neck having an end closure, said neck having an opening through the cylindrical wall thereof immediately below the end closure; and a cylindrical washer fitted closely around the outside of the neck and extending above and below the neck opening, with an opening in said washer coinciding with the opening in the neck, said washer having a flange around its upper rim; and a sleeve rotatably mounted around said neck and washer, and havin said washer and neck when moved down away 1102 from said flange; said sleeve having a shelf or guide to facilitate handling of the contents during removal from the container; said washer and neck having additional openings as air vents for the removal of fluids from rigid containers.

3. The combination of a container terminating in a rigid cylindrical neck having an end closure, said neck having an opening through the cylindrical wall thereof immediately below the end closure; and a cylindrical washer fitted around the outside of the neck and extending above and below the neck opening, with an opening in said washer coinciding with said opening. 

